Additional high-tier, expensive mech armors for late-game situations.
Mech armor 2 - bigger equipment grid (14x16) and inventory bonus (70), but lowered defensive power due to overclocking.
Mech armor 3 - bigger equipment grid (18x20) and inventory bonus (100), with increased defensive stats due to Aquilo technology
Eternal mech armor - extremely large equipment grid (26x30) and inventory bonus (150), with perfect immunity to all damage; leverages the power of promethium asteroid chunks to displace the user into another dimension

Mech armor 2 recipe: Mech armor x1, 50x Quality module 3, 100x Speed / Efficiency / Productivity module 3
Research requires 15000x Automation / Logistic / Chemical / Military / Utility / Space / Electromagnetic

Mech armor 3 recipe: Mech armor 2 x1, 100x Quantum processor / Fusion power cell, 5x Fusion reactor equipment, 1000x Fluoroketone (Cold)
Research requires 25000x Automation / Logistic / Chemical / Military / Utility / Space / Electromagnetic / Metallurgic / Agricultural / Cryogenic

Eternal mech armor recipe: Mech armor 3 x1, 250x Promethium asteroid chunk, 20x Nuclear fuel, 10x Thruster, 25x Energy shield MK2 / Toolbelt equipment
Research requires 100000x of all packs except Production